SREM key member [member …]
相关命令
- SADD
- SCARD
- SDIFF
- SDIFFSTORE
- SINTER
- SINTERSTORE
- SISMEMBER
- SMEMBERS
- SMOVE
- SPOP
- SRANDMEMBER
- SREM
- SSCAN
- SUNION
- SUNIONSTORE
始于1.0.0可用。
时间复杂度: O(N) where N is the number of members to be removed.
Remove the specified members from the set stored at key
. Specified members that are not a member of this set are ignored. If key
does not exist, it is treated as an empty set and this command returns 0
.
An error is returned when the value stored at key
is not a set.
返回值
Integer reply: the number of members that were removed from the set, not including non existing members.
History
>= 2.4
: Accepts multiplemember
arguments. Redis versions older than 2.4 can only remove a set member per call.
例子
redis> SADD myset "one"
- (integer) 1
redis> SADD myset "two"
- (integer) 1
redis> SADD myset "three"
- (integer) 1
redis> SREM myset "one"
- (integer) 1
redis> SREM myset "four"
- (integer) 0
redis> SMEMBERS myset
- 1) "three"
- 2) "two"
This website is open source software developed by Citrusbyte.
The Redis logo was designed by Carlos Prioglio. See more credits.